+;; mm-util stuff.
+(unless (featurep 'mm-util)
+ ;; Should keep track of `mm-image-load-path' in mm-util.el.
+ (defun nnheader-image-load-path (&optional package)
+ (let (dir result)
+ (dolist (path load-path (nreverse result))
+ (if (file-directory-p
+ (setq dir (concat (file-name-directory
+ (directory-file-name path))
+ "etc/" (or package "gnus/"))))
+ (push dir result))
+ (push path result))))
+ (defalias 'mm-image-load-path 'nnheader-image-load-path)
+
+ ;; Should keep track of `mm-read-coding-system' in mm-util.el.
+ (defalias 'mm-read-coding-system
+ (if (or (and (featurep 'xemacs)
+ (<= (string-to-number emacs-version) 21.1))
+ (boundp 'MULE))
+ (lambda (prompt &optional default-coding-system)
+ (read-coding-system prompt))
+ 'read-coding-system))
+
+ ;; Should keep track of `mm-%s' in mm-util.el.
+ (defalias 'mm-multibyte-string-p
+ (if (fboundp 'multibyte-string-p)
+ 'multibyte-string-p
+ 'ignore))
+ (defalias 'mm-encode-coding-string 'encode-coding-string)
+ (defalias 'mm-decode-coding-string 'decode-coding-string)
+
+ ;; Should keep track of `mm-detect-coding-region' in mm-util.el.
+ (defun nnheader-detect-coding-region (start end)
+ "Like 'detect-coding-region' except returning the best one."
+ (let ((coding-systems
+ (static-if (boundp 'MULE)
+ (code-detect-region (point) (point-max))
+ (detect-coding-region (point) (point-max)))))
+ (or (car-safe coding-systems)
+ coding-systems)))
+ (defalias 'mm-detect-coding-region 'nnheader-detect-coding-region)
+
+ ;; Should keep track of `mm-detect-mime-charset-region' in mm-util.el.
+ (defun nnheader-detect-mime-charset-region (start end)
+ "Detect MIME charset of the text in the region between START and END."
+ (coding-system-to-mime-charset
+ (nnheader-detect-coding-region start end)))
+ (defalias 'mm-detect-mime-charset-region
+ 'nnheader-detect-mime-charset-region)
+
+ ;; Should keep track of `mm-with-unibyte-buffer' in mm-util.el.
+ (defmacro nnheader-with-unibyte-buffer (&rest forms)
+ "Create a temporary buffer, and evaluate FORMS there like `progn'.
+Use unibyte mode for this."
+ `(let (default-enable-multibyte-characters default-mc-flag)
+ (with-temp-buffer ,@forms)))
+ (put 'nnheader-with-unibyte-buffer 'lisp-indent-function 0)
+ (put 'nnheader-with-unibyte-buffer 'edebug-form-spec '(body))
+ (put 'mm-with-unibyte-buffer 'lisp-indent-function 0)
+ (put 'mm-with-unibyte-buffer 'edebug-form-spec '(body))
+ (defalias 'mm-with-unibyte-buffer 'nnheader-with-unibyte-buffer)
+
+ ;; Should keep track of `mm-with-unibyte-current-buffer' in mm-util.el.
+ (defmacro nnheader-with-unibyte-current-buffer (&rest forms)
+ "Evaluate FORMS with current current buffer temporarily made unibyte.
+Also bind `default-enable-multibyte-characters' to nil.
+Equivalent to `progn' in XEmacs"
+ (let ((multibyte (make-symbol "multibyte"))
+ (buffer (make-symbol "buffer")))
+ (cond ((featurep 'xemacs)
+ `(let (default-enable-multibyte-characters)
+ ,@forms))
+ ((boundp 'MULE)
+ `(let ((,multibyte mc-flag)
+ (,buffer (current-buffer)))
+ (unwind-protect
+ (let (default-enable-multibyte-characters default-mc-flag)
+ (setq mc-flag nil)
+ ,@forms)
+ (set-buffer ,buffer)
+ (setq mc-flag ,multibyte))))
+ (t
+ `(let ((,multibyte enable-multibyte-characters)
+ (,buffer (current-buffer)))
+ (unwind-protect
+ (let (default-enable-multibyte-characters)
+ (set-buffer-multibyte nil)
+ ,@forms)
+ (set-buffer ,buffer)
+ (set-buffer-multibyte ,multibyte)))))))
+ (put 'nnheader-with-unibyte-current-buffer 'lisp-indent-function 0)
+ (put 'nnheader-with-unibyte-current-buffer 'edebug-form-spec '(body))
+ (put 'mm-with-unibyte-current-buffer 'lisp-indent-function 0)
+ (put 'mm-with-unibyte-current-buffer 'edebug-form-spec '(body))
+ (defalias 'mm-with-unibyte-current-buffer
+ 'nnheader-with-unibyte-current-buffer)
+
+ ;; Should keep track of `mm-with-unibyte' in mm-util.el.
+ (defmacro nnheader-with-unibyte (&rest forms)
+ "Eval the FORMS with the default value of `enable-multibyte-characters'
+nil, ."
+ `(let (default-enable-multibyte-characters)
+ ,@forms))
+ (put 'nnheader-with-unibyte 'lisp-indent-function 0)
+ (put 'nnheader-with-unibyte 'edebug-form-spec '(body))
+ (put 'mm-with-unibyte 'lisp-indent-function 0)
+ (put 'mm-with-unibyte 'edebug-form-spec '(body))
+ (defalias 'mm-with-unibyte 'nnheader-with-unibyte)
+
+ ;; Should keep track of `mm-guess-mime-charset' in mm-util.el.
+ (defun nnheader-guess-mime-charset ()
+ "Guess the default MIME charset from the language environment."
+ (let ((language-info
+ (and (boundp 'current-language-environment)
+ (assoc current-language-environment
+ language-info-alist)))
+ item)
+ (cond
+ ((null language-info)
+ 'iso-8859-1)
+ ((setq item
+ (cadr
+ (or (assq 'coding-priority language-info)
+ (assq 'coding-system language-info))))
+ (if (fboundp 'coding-system-get)
+ (or (coding-system-get item 'mime-charset)
+ item)
+ item))
+ ((setq item (car (last (assq 'charset language-info))))
+ (if (eq item 'ascii)
+ 'iso-8859-1
+ (charsets-to-mime-charset (list item))))
+ (t
+ 'iso-8859-1))))
+ (defalias 'mm-guess-mime-charset 'nnheader-guess-mime-charset)
+
+ (defalias 'mm-char-int 'char-int)
+
+ ;; Should keep track of the same alias in mm-util.el.
+ (defalias 'mm-multibyte-p
+ (static-cond ((and (featurep 'xemacs) (featurep 'mule))
+ (lambda nil t))
+ ((featurep 'xemacs)
+ (lambda nil nil))
+ ((boundp 'MULE)
+ (lambda nil mc-flag))
+ (t
+ (lambda nil enable-multibyte-characters))))
+
+ ;; Should keep track of the same alias in mm-util.el.
+ (defalias 'mm-make-temp-file
+ (if (fboundp 'make-temp-file)
+ 'make-temp-file
+ (lambda (prefix &optional dir-flag)
+ (let ((file (expand-file-name
+ (make-temp-name prefix)
+ (if (fboundp 'temp-directory)
+ (temp-directory)
+ temporary-file-directory))))
+ (if dir-flag
+ (make-directory file))
+ file))))
+
+ ;; Should keep track of `mm-coding-system-p' in mm-util.el.
+ (defun nnheader-coding-system-p (sym)
+ "Return non-nil if SYM is a coding system."
+ (or (and (fboundp 'find-coding-system) (find-coding-system sym))
+ (and (fboundp 'coding-system-p) (coding-system-p sym))))
+ (defalias 'mm-coding-system-p 'nnheader-coding-system-p))
+
+;; mail-parse stuff.
+(unless (featurep 'mail-parse)
+ (unless (fboundp 'std11-narrow-to-field)
+ (defalias 'std11-narrow-to-field
+ ;; Should keep track of `rfc2047-narrow-to-field' in rfc2047.el.
+ (lambda ()
+ "Narrow the buffer to the header on the current line."
+ (forward-line 0)
+ (narrow-to-region (point)
+ (progn
+ (std11-field-end)
+ (when (eolp) (forward-line 1))
+ (point)))
+ (goto-char (point-min)))))
+ (defalias 'mail-header-narrow-to-field 'std11-narrow-to-field)
+
+ ;; Should keep track of `ietf-drums-narrow-to-header' in ietf-drums.el.
+ (defun mail-narrow-to-head ()
+ "Narrow to the header section in the current buffer."
+ (narrow-to-region
+ (goto-char (point-min))
+ (if (re-search-forward "^\r?$" nil 1)
+ (match-beginning 0)
+ (point-max)))
+ (goto-char (point-min)))
+
+ (unless (fboundp 'std11-fold-region)
+ (defalias 'std11-fold-region
+ ;; Should keep track of `rfc2047-fold-region' in rfc2047.el.
+ (lambda (b e)
+ "Fold long lines in region B to E."
+ (save-restriction
+ (narrow-to-region b e)
+ (goto-char (point-min))
+ (let ((break nil)
+ (qword-break nil)
+ (first t)
+ (bol (save-restriction
+ (widen)
+ (gnus-point-at-bol))))
+ (while (not (eobp))
+ (when (and (or break qword-break)
+ (> (- (point) bol) 76))
+ (goto-char (or break qword-break))
+ (setq break nil
+ qword-break nil)
+ (if (looking-at "[ \t]")
+ (insert "\n")
+ (insert "\n "))
+ (setq bol (1- (point)))
+ ;; Don't break before the first non-LWSP characters.
+ (skip-chars-forward " \t")
+ (unless (eobp)
+ (forward-char 1)))
+ (cond
+ ((eq (char-after) ?\n)
+ (forward-char 1)
+ (setq bol (point)
+ break nil
+ qword-break nil)
+ (skip-chars-forward " \t")
+ (unless (or (eobp) (eq (char-after) ?\n))
+ (forward-char 1)))
+ ((eq (char-after) ?\r)
+ (forward-char 1))
+ ((memq (char-after) '(? ?\t))
+ (skip-chars-forward " \t")
+ (if first
+ ;; Don't break just after the header name.
+ (setq first nil)
+ (setq break (1- (point)))))
+ ((not break)
+ (if (not (looking-at "=\\?[^=]"))
+ (if (eq (char-after) ?=)
+ (forward-char 1)
+ (skip-chars-forward "^ \t\n\r="))
+ (setq qword-break (point))
+ (skip-chars-forward "^ \t\n\r")))
+ (t
+ (skip-chars-forward "^ \t\n\r"))))
+ (when (and (or break qword-break)
+ (> (- (point) bol) 76))
+ (goto-char (or break qword-break))
+ (setq break nil
+ qword-break nil)
+ (if (looking-at "[ \t]")
+ (insert "\n")
+ (insert "\n "))
+ (setq bol (1- (point)))
+ ;; Don't break before the first non-LWSP characters.
+ (skip-chars-forward " \t")
+ (unless (eobp)
+ (forward-char 1))))))))
+
+ (unless (fboundp 'std11-fold-field)
+ (defalias 'std11-fold-field
+ ;; Should keep track of `rfc2047-fold-field' in rfc2047.el.
+ (lambda ()
+ "Fold the current line."
+ (save-excursion
+ (save-restriction
+ (std11-narrow-to-field)
+ (std11-fold-region (point-min) (point-max)))))))
+ (defalias 'mail-header-fold-field 'std11-fold-field)
+
+ (unless (fboundp 'std11-unfold-region)
+ (defalias 'std11-unfold-region
+ ;; Should keep track of `rfc2047-unfold-region' in rfc2047.el.
+ (lambda (b e)
+ "Unfold lines in region B to E."
+ (save-restriction
+ (narrow-to-region b e)
+ (goto-char (point-min))
+ (let ((bol (save-restriction
+ (widen)
+ (gnus-point-at-bol)))
+ (eol (gnus-point-at-eol)))
+ (forward-line 1)
+ (while (not (eobp))
+ (if (and (looking-at "[ \t]")
+ (< (- (gnus-point-at-eol) bol) 76))
+ (delete-region eol (progn
+ (goto-char eol)
+ (skip-chars-forward "\r\n")
+ (point)))
+ (setq bol (gnus-point-at-bol)))
+ (setq eol (gnus-point-at-eol))
+ (forward-line 1)))))))
+
+ (unless (fboundp 'std11-unfold-field)
+ (defalias 'std11-unfold-field
+ ;; Should keep track of `rfc2047-unfold-field' in rfc2047.el.
+ (lambda ()
+ "Fold the current line."
+ (save-excursion
+ (save-restriction
+ (std11-narrow-to-field)
+ (std11-unfold-region (point-min) (point-max)))))))
+ (defalias 'mail-header-unfold-field 'std11-unfold-field)
+
+ (unless (fboundp 'std11-extract-addresses-components)
+ (defalias 'std11-extract-addresses-components
+ ;; This is the original function in T-gnus.
+ (lambda (string)
+ "Extract a list of full name and canonical address from STRING. Each
+element looks like a list of the form (FULL-NAME CANONICAL-ADDRESS).
+If no name can be extracted, FULL-NAME will be nil."
+ (when string
+ (let (addresses)
+ (dolist (structure (std11-parse-addresses-string
+ (std11-unfold-string string))
+ addresses)
+ (push (list (std11-full-name-string structure)
+ (std11-address-string structure))
+ addresses))
+ (nreverse addresses))))))
+
+ ;; Should keep track of `ietf-drums-parse-addresses' in ietf-drums.el.
+ (defun mail-header-parse-addresses (string)
+ "Parse STRING and return a list of MAILBOX / DISPLAY-NAME pairs."
+ (mapcar (function
+ (lambda (components)
+ (cons (nth 1 components) (car components))))
+ (std11-extract-addresses-components string)))
+
+ ;; Should keep track of `rfc2047-field-value' in rfc2047.el.
+ (defun std11-field-value (&optional dont-include-last-newline)
+ "Return the value of the field at point. If the optional argument is
+given, the return value will not contain the last newline."
+ (let ((begin (point))
+ (inhibit-point-motion-hooks t)
+ start value)
+ (beginning-of-line)
+ (unless (eobp)
+ (while (and (memq (char-after) '(?\t ?\ ))
+ (zerop (forward-line -1))))
+ (when (looking-at "[^\t\n ]+:[\t\n ]+")
+ (goto-char (setq start (match-end 0)))
+ (forward-line 1)
+ (while (and (memq (char-after) '(?\t ?\ ))
+ (zerop (forward-line 1))))
+ (when dont-include-last-newline
+ (skip-chars-backward "\t\n " start))
+ (setq value (buffer-substring start (point)))))
+ (goto-char begin)
+ value))
+ (defalias 'mail-header-field-value 'std11-field-value))
+
+;; ietf-drums stuff.
+(unless (featurep 'ietf-drums)
+ ;; Should keep track of `ietf-drums-unfold-fws' in ietf-drums.el.
+ (defun nnheader-unfold-fws ()
+ "Unfold folding white space in the current buffer."
+ (goto-char (point-min))
+ (while (re-search-forward "[ \t]*\n[ \t]+" nil t)
+ (replace-match " " t t))
+ (goto-char (point-min)))
+
+ (defalias 'ietf-drums-unfold-fws 'nnheader-unfold-fws))
+
projects / elisp / gnus.git- / blobdiff